Space Shift Keying with Full Duplex Amplify and Forward Relaying

In this paper, we investigate the error performance of space-shift-keying (SSK) with full-duplex (FD) amplify-and-forward (AF) relaying over Rayleigh fading channels in the presence of residual loop interference. In the proposed system, the source and destination nodes are equipped with multiple antennas, while the relay node has a single transmit and receive antenna. An upper-bound for the bit error rate (BER) expression of the system is derived in a closed-form. The accuracy of the analytical results are validated via Monte Carlo type computer simulations. It is revealed that SSK with FD-AF relaying as a spectrum-efficient transmission scheme provides considerable error performance improvement in comparison with the conventional SSK with half-duplex (HD) AF relaying, especially for higher spectral efficiency values.